MCQOPTIONS
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				| 1. | 
                                    In a 3 phase full wave regulator feeding a star connected resistance load, firing angle is 75°. Then the number of thyristors conducting at one time is | 
                            
| A. | 3 | 
| B. | 4 | 
| C. | SUS | 
| D. | SBS | 
| Answer» C. SUS | |